We checked the VRTC pin on the TPS65022 and we got 3V reading when the board was unplugged. We figured that RTC must get power then. Could anyone suggest how else to test if RTC gets powered correctly? Otherwise, any ideas why the clock is reset on every restart?

Timur

On 7/26/07, Timur Alperovich <timur.alperovich@gmail.com> wrote:
> For the sake of others who may find this thread, care to share?

I ended up loading the rtc-sa1100 module along with rtc-core, rtc-dev, rtc-proc. In the end I had rtc0 device created in /dev. hwclock can query it and reports the time from the chip, but on restart the time is still reset. We desoldered the 0 ohm resistor and attached the leads for the 3 Volt battery to it. We did continuity test and the pins on the 24 pin connector are the same as the ones where the 0 ohm resistor was connected. What could be the cause for the rtc to reset? When gumstix reboots, is power lost to the board?

Timur